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摘要:
多相永磁同步电机（PMSM）的驱动控制方式主要包括余度和容错两种形式，为明晰多相永磁同步电机采用两种不同驱动控制方式所带来的性能差异，基于一个六相永磁同步电机，分别建立了余度和容错两种永磁同步电机驱动控制系统。在此基础上，分析研究了余度和容错两种驱动控制方式对六相永磁同步电机系统调速范围和动态性能的影响机理及影响规律。仿真和实验结果表明：相比于余度驱动控制，六相永磁同步电机采用容错驱动控制方式时具有更宽的调速范围及更好的动态性能。
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关键词:
- 可靠性 /
- 永磁同步电机(PMSM) /
- 余度 /
- 容错 /
- 驱动控制
Abstract:The drive-control modes of multi-phase permanent magnet synchronous motor (PMSM) consist of the redundant mode and fault-tolerant mode. To research the difference of multi-phase PMSM performance caused by drive-control modes, a redundant PMSM system and a fault-tolerant PMSM system are built respectively based on a six-phase PMSM. On this basis, the influence mechanism and influence law of the redundant and fault-tolerant drive-control modes on the six-phase PMSM system performance are studied, including the speed range and dynamic performance. Simulation and experimental results show that, compared with the redundant drive-control mode, the six-phase PMSM with fault-tolerant drive-control mode has wider speed range and better dynamic performance.
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Key words:
- reliability /
- permanent magnet synchronous motor (PMSM) /
- redundant /
- fault-tolerant /
- drive-control
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图 3 双三相余度永磁同步电机双d-q变换矢量控制框图
Figure 3. Dual d-q transformation vector control diagram of dual three-phase redundant PMSM
图 5 六相容错永磁同步电机最优转矩控制框图
Figure 5. Optimal torque control diagram of six-phase fault-tolerant PMSM
图 6 六相永磁同步电机相绕组相量图和等效电路
Figure 6. Phasor diagram and equivalent circuit of six-phase PMSM phase winding
图 7 双三相余度永磁同步电机和六相容错永磁同步电机的转速-转矩特性曲线
Figure 7. Speed-torque curves of dual three-phase redundant PMSM and six-phase fault-tolerant PMSM
图 8 双三相余度永磁同步电机和六相容错永磁同步电机的转速-转矩特性曲线仿真结果
Figure 8. Speed-torque simulation curves of dual three-phase redundant PMSM and six-phase fault-tolerant PMSM
图 9 双三相余度永磁同步电机和六相容错永磁同步电机在60°阶跃指令下的位置、转速和电磁转矩仿真曲线
Figure 9. Simulation curves of position, speed and electromagnetic torque for dual three-phase redundant PMSM and six-phase fault-tolerant PMSM with a 60° step instruction
图 10 双三相余度永磁同步电机和六相容错永磁同步电机在360°阶跃指令下的位置、转速和电磁转矩仿真曲线
Figure 10. Simulation curves of position, speed and electromagnetic torque for dual three-phase redundant PMSM and six-phase fault-tolerant PMSM with a 360° step instruction
图 12 双三相余度永磁同步电机和六相容错永磁同步电机在60°阶跃指令下的位置、转速和电磁转矩实验波形
Figure 12. Experimental waveforms of position, speed and electromagnetic torque for dual three-phase redundant PMSM and six-phase fault-tolerant PMSM with a 60° step instruction
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